Background

Mr. John Yearwood served as the President, Chief Operating Officer and Chief Executive Officer of Smith International, Inc., an affiliate of Smith Technologies and SWACO from January 1, 2009 to August 27, 2010. Mr. Yearwood had responsibility for cased hole logging, coiled tubing, packers, liner hangers and artificial lift, as well as several other operating units. He served as Senior Adviser of Schlumberger Ltd. from March 2006 to May 2008 and also as Financial Director. ... He served as President of Smith Completion and Production and Executive Vice President of Smith International Inc. from August 20, 2008 to December 31, 2008. From 1980 to March 2006, he served in a variety of positions at Schlumberger Limited much of which included responsibilities for businesses primarily focused outside of the United States, including President of North and South America, Schlumberger Oilfield Services. From 1998 to 2006, Mr. Yearwood served as the President of Dowell, the Marketing Director for Schlumberger Oilfield Services, the Finance Director for WesternGeco and the Controller for Schlumberger Oilfield Services. He has been a Lead director of Nabors Industries Ltd. since June 7, 2011 and has been its Director since 2010. He serves as a Director of Sheridan Production Partners. He has been a Director of Forest Oil Corporation (Previously, Sabine Oil & Gas LLC (formerly, NFR Energy, LLC)) since June 2007. He serves as a Director of Greater Houston Partnership. He serves as Non-Executive Director of Barra Energia do Brasil Petróleo e Gás Ltda. He served as a Director of Smith International, Inc. from December 2006 to August 2010. Mr. Yearwood received a Bachelor of Science Honors Degree in Geology and the Environment from Oxford Brookes University.

Lead Director, Chairman of Governance & Nominating Committee, Member of Executive Committee, Member of Technical & Safety Committee, Member of Risk Oversight Committee, Member of Audit Committee and Member of Compensation Committee

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